Distortion, also known as metamorphopsia, is a symptom of many macular diseases.   Anything that affects the macula can cause distortion; epiretinal membranes, macular holes, macular edema, diabetic retinopathy and macular degeneration.  The macula is a place in the retina, the functional center.  Thus, the term "macular" becomes an adjective when describing retinal … [Read more...]